I'm having the same issue. It started about a month ago after a Win11 update.
I logged the issue with Applain, and it appears that they sent me here.
From Inga Morozoff @ 20 Mar 2025 15:03
Votes: 3
I had to turn off my Windows 11 Core Isolation in my Memory Security to enable Applian Replay Music 2025 to install 2 copies of jaksta_va.sys. Now I cannot turn the Core Isolation back on. Do you an updated version of this driver that was created in 2014?? Than you.
From Garnet Robinson @ 31 Jul 2025 22:07
Votes: 3